Table of contents

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1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

2. Atoms & Elements

The Atom

General Chemistry

2. Atoms & Elements

The Atom

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Multiple Choice

How many protons does a sodium atom have?

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Verified step by step guidance

Identify the element in question, which is sodium. Sodium is represented by the chemical symbol 'Na'.

Locate sodium on the periodic table. The periodic table provides essential information about each element, including its atomic number.

Understand that the atomic number of an element represents the number of protons in the nucleus of an atom of that element. For sodium, the atomic number is 11.

Recognize that the atomic number is unique to each element and determines the element's identity. Therefore, a sodium atom has 11 protons.

Verify your understanding by checking the periodic table again to ensure that sodium's atomic number is indeed 11, confirming that a sodium atom has 11 protons.